# Define your item pipelines here
#
# Don't forget to add your pipeline to the ITEM_PIPELINES setting
# See: https://docs.scrapy.org/en/latest/topics/item-pipeline.html


# useful for handling different item types with a single interface
from itemadapter import ItemAdapter

import json


class MyspiderPipeline:
    def __init__(self):
        self.file = open("teacher.json", "w", encoding="utf-8")

    def process_item(self, item, spider):
        # 将Item对象写入文件
        content = json.dumps(dict(item), ensure_ascii=False) + "\n"
        self.file.write(content)
        return item

    def close_spider(self, spider):
        # 关闭文件 
        self.file.close()
